Coronation Street's Steve McDonald to be hit with life-changing news

Steve McDonald is set to be hit with another dramatic storyline that threatens his health, just one month after it was revealed he was fathering two children

'Coronation Street' landlord Steve McDonald is set to be hit with life-changing health news.

The Rovers Return boss - played by 41-year-old Simon Gregson - was caught in a mammoth plot twist last month after it was revealed that he got his girlfriend Michelle Connor (Kym Marsh) pregnant, as well as Leanne Battersby (Jane Danson) after a one-night stand. But it doesn't look as though the drama stops there for Steve, as more bad news is on the way.

In a new storyline, Steve will be told he might have myotonic dystrophy, a genetic disorder passed down from his dad Jim McDonald.

To make matters worse, Steve will have to come to terms with the fact he may have passed the muscle wasting condition on to his two unborn children.

Speaking to The Sun newspaper, an insider revealed: "Steve's life was thrown into complete chaos when he discovered he had impregnated his missus - and a woman who isn't his missus. And viewers will soon see Steve suffer even further when he is told he could have myotonic dystrophy - a disorder which could ultimately be life-threatening. Obviously the impact of the disorder on him would be huge if he has it but as it's genetic both his babies with Michelle and Leanne could have it too."

The storyline will see Steve's dad Jim phone him to tell him he has been diagnosed with the disorder that causes muscle wasting and weakness, and to tell him that he might have it too.

With concerns looming about Steve's unborn babies, he must then admit to girlfriend Michelle that their baby is at risk. However, things get complicated when Michelle confides her baby fears in new friend Leanne, not realising that she too is carrying Steve's child.

The source added: "This story could be the tipping point for Leanne and force her to reveal that Steve's the father of her baby."